CN2425226Y

CN2425226Y - Improved oil pressure flating support cylinder

Info

Publication number: CN2425226Y
Application number: CN 00234340
Authority: CN
Inventors: 卢进兴
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-05-12
Filing date: 2000-05-12
Publication date: 2001-03-28
Anticipated expiration: 2010-05-12

Abstract

The utility model relates to an improved oil pressure floating supporting cylinder, which comprises a cylinder body, an oil seal, a pushing and pulling sleeve, a small spring, a large spring, a pushing mandrel, a snap ring, an elastic collet chuck, a positioning ring, a screw cap and a dust catcher, wherein, an accommodating chamber of the cylinder body is used for accommodating the pushing and pulling sleeve; the inner wall of the accommodating chamber is provided with a concave ditch for sheathing the oil seal to seal the pushing and pulling sleeve; a screw thread section is arranged above the accommodating chamber so that a shoulder part is formed between the screw thread section and the accommodating chamber; the complete cycle of a conical hole of the pushing and pulling sleeve presses the elastic collet chuck, which has good effect on the increase in contact area to reduce abrasion; in addition, the pushing mandrel is inwards compelled through the elastic collet chuck so that high-strength supporting force effect can be generated between the elastic collet chuck and the pushing mandrel.

Description

The unsteady shoring of the oil pressure of improvement

The utility model relates to a kind of fluid pressure actuator, relates in particular to a kind of unsteady shoring of oil pressure of improvement.

The unsteady shoring structure of the oil pressure of existing use, as shown in Figure 1, its cylinder body (11) is established a vertical putting chamber (12) and a radial perforation (13), and it is thamnastraeoid to make this a vertical putting chamber (12) and a radial perforation (13) be 90 degree, in putting chamber (12) bottom spring (14) is set, pivot inserts cylindrical mandrel (15) again, then at putting chamber (12) apical margin assembly dirt-proof boot (16) so as to sealing axle (15).In addition, organize in regular turn at radial perforation (13) and to put another spring (17), piston (18) and plug screw (19), it is just to shrink pressing spring (14) down when axle (15) napex is subjected to the weight of workpiece thing, open oil pressure and enter radial perforation (13) from the inlet (191) of plug screw (19) this moment, promote piston (18) again and compress axle (15) forward, it establishes the inclined-plane (151) (181) that matches at axle (15) and piston (18) front end, to strengthen the strength that axle (15) up holds.There is following shortcoming in the above-mentioned unsteady shoring structure of oil pressure of commonly using:

1. at vertical putting chamber of cylinder body (11) car system (12) and radial perforation (13), complicated on it is made, must very carefully process lentamente, thereby reduce working efficiency.

2. its piston (18) pushes axle (15) with the side direction application of force, be to borrow the inclined-plane (181) (151) that matches to be small size or put contact to support, therefore can bear great pressure in position piston (18) center roller (15), the axle (15) of contact to putting chamber (12) hole wall, after long-time the use, cause crooked, the distortion of inclined-plane (181) (151) indenture and axle (15) easily, reduce precision and activity performance.

In view of this, this case creator is actively to make great efforts exploitation and research, and relies on the manufacturing experience of this series products for many years based on commonly using the above-mentioned drawback that product exists, succeeds in developing the utility model finally.

Main purpose of the present utility model is, a kind of unsteady shoring of oil pressure of improvement is provided, and makes this push away complete all pressure of the conical bore that pulls out cover and holds up elastic collet chuck, has splendid effect so as to reducing wear for increasing area of contact.

Another purpose of the present utility model is, a kind of unsteady shoring of oil pressure of improvement is provided, and holds axle with the inside packing item of elastic collet chuck, can make and produce high-intensity support force effect to each other.

The purpose of this utility model is realized by following technological scheme.

A kind of oil pressure of improvement shoring that floats, comprise cylinder body, oil sealing, push away and pull out cover, little spring, big spring, hold axle, clasp, elastic collet chuck, positioning ring, nut and dirt-proof boot, it is characterized in that: the accommodating chamber of described cylinder body pulls out cover for accommodating to push away, the accommodating chamber inwall is established a chase, supply the suit oil sealing sealing to push away and pull out cover, and thread section is set, and make formation one shoulder between this thread section and this accommodating chamber on accommodating chamber; Described pushing away pulled out the cover periphery and is provided with shoulder, and it is that group is put in cylinder body, and central authorities establish a conical bore, in order to ccontaining elastic collet chuck, and in the bottom little spring are set, in addition in the sheathed big spring of periphery shoulder; The described axle that holds is that pivot penetrates elastic collet chuck inside, and a chase is established for the suit clasp in its periphery bottom, and the bottom is established an endoporus and is against and pushes away on the little spring that pulls out in the cover; Described positioning ring is that cutting ferrule elastic collet chuck, and is arranged on the shoulder of cylinder body, compresses big spring simultaneously; Described nut central authorities establish a perforation, and hold axle and be locked on the thread section of cylinder body for penetrating, and the stationary positioned circle, its top is arranged with room for the installing dirt-proof boot.

The utility model can increase area of contact and have splendid effect for reducing wear, and inside packing holds axle by elastic collet chuck simultaneously, can make and produce high-intensity support force effect to each other.

For further understanding technology contents of the present utility model, characteristics and effect, exemplify following preferred embodiment now, and conjunction with figs. is described in detail as follows:

Fig. 1 commonly uses the product combination sectional drawing.

Fig. 2 is a combination schematic perspective view of the present utility model.

Fig. 3 is an exploded perspective schematic representation of the present utility model.

Fig. 4 is a combination section of the present utility model.

Fig. 5 is an enforcement action schematic representation () of the present utility model.

Fig. 6 is an enforcement action schematic representation (two) of the present utility model.

At first, see also Fig. 2 to shown in Figure 4, the utility model mainly by cylinder body (21), oil sealing (215), push away and pull out cover (22), little spring (223), big spring (224), hold axle (23), clasp (232), elastic collet chuck (24), positioning ring (25), nut (26) and dirt-proof boot parts such as (27) and form.Wherein:

This cylinder body (21) bottom side is to connect with oil duct (212) and accommodating chamber (213) to oilhole (211), and its accommodating chamber (213) is to be used to accommodate push away pull out cover (22), and establish a chase (214) at accommodating chamber (213) inwall, supply the close bundle of suit oil sealing (215) to push away and pull out cover (22), thread section (216) is set above the accommodating chamber (213), makes and form a shoulder (217) between this thread section (216) and the accommodating chamber (213).

This pushes away and pulls out cover (22) is a pair of rank cylindrical body, is that group is put in above-mentioned cylinder body (21), and its periphery has shoulder (221), central authorities offer conical bore (222), in order to ccontaining elastic collet chuck (24), and little spring (223) is set, in addition in the sheathed big spring of periphery shoulder (221) (224) in its bottom.

This holds axle (23) is that pivot is through elastic collet chuck (24) inside, a chase (231) is established for suit clasp (232) in its periphery bottom, its bottom is established an endoporus (233) and is butted on to push away and pulls out on the interior little spring (223) of cover (22), can fluctuate so that hold axle (23) integral body.

This positioning ring (25) is that cutting ferrule elastic collet chuck (24), and is arranged on the shoulder (217) of cylinder body (21), compresses big spring (224) simultaneously.

This nut (26) central authorities establish a perforation (261), hold axle (23) and be locked on the thread section (216) of cylinder body (21) for penetrating, and fixing above-mentioned positioning ring (25), portion offers room (262) thereon, seals the effect that holds axle (23) for installing dirt-proof boot (27) to reach.

Please cooperate again and consult Fig. 4 to shown in Figure 6, the utility model working principle is as described below: holding axle (23) when being subjected to putting the mass loading of workpiece thing (30), just compression little spring (223) sinks, and then start oil pressure from oilhole (211) in oil duct (212) enters cylinder body (21) accommodating chamber (213) bottom, borrow its pressure effect to push away to pull out cover (22) and move towards the top, borrow this to push away the conical bore (222) that pulls out cover (22) and hold up compression elasticity collet chuck (24), relend that axle (23) is held in the tight bunchy top of this elastic collet chuck (24) and supporting workpiece thing (30) just can carry out construction operation on workpiece thing (30).Also take workpiece thing (30) away if remove oil pressure, at this moment, this pushes away and pulls out cover (22) and pushed by big spring (224) to descend and break away from cylinder and press from both sides (24) pine oil and hold axle (23), and this holds axle (23) and pushed and rising involution original position by little spring (223).

In sum, the utility model has solved difficulty and the low drawback of commonly using in the unsteady shoring manufacturing of oil pressure of permanent operational safety, has novelty, creativeness, practicability, meets novel patent application important document, so file an application in accordance with the law.

Claims

A kind of oil pressure of improvement shoring that floats comprises cylinder body, oil sealing, pushes away and pull out cover, little spring, big spring, hold axle, clasp, elastic collet chuck, positioning ring, nut and dirt-proof boot, it is characterized in that:

The accommodating chamber of described cylinder body pulls out cover for accommodating to push away, and the accommodating chamber inwall is established a chase, pushes away for the suit oil sealing sealing and pulls out cover, and thread section is set on accommodating chamber, and make formation one shoulder between this thread section and this accommodating chamber;

Described pushing away pulled out the cover periphery and is provided with shoulder, and it is that group is put in cylinder body, and central authorities establish a conical bore, in order to ccontaining elastic collet chuck, and in the bottom little spring are set, in addition in the sheathed big spring of periphery shoulder;

The described axle that holds is that pivot penetrates elastic collet chuck inside, and a chase is established for the suit clasp in its periphery bottom, and the bottom is established an endoporus and is against and pushes away on the little spring that pulls out in the cover;

Described positioning ring is that cutting ferrule elastic collet chuck, and is arranged on the shoulder of cylinder body, compresses big spring simultaneously;

Described nut central authorities establish a perforation, and hold axle and be locked on the thread section of cylinder body for penetrating, and the stationary positioned circle, its top is arranged with room for the installing dirt-proof boot.